Nonskid wheel



April 14, 1925. 1,533,935

A. A. MCISAAC NoNsKID WHEEL Filed April l, 1924 SM1/nem fm.

. .l iratented ld,

nirev earns ARGE-TY ANGUS VoSAiltG, O'F INVERNESS, `NOVA SCOTIA, CANADA.

NONSKID *WHEEL Application filed April l,

" thus eliminating` the necessity o'fusing the ordinary nonslrid chain.

Another important object oi' the invention is to construct a Wheel ot this nature possessed ot a simple and etlicient construction, 4one which is reliable in use.y inexpensive to manufacture, durable7 ano Well dapted to the purpose for which it isdesigned.

lith the abovev and numerous other objects in view as will appear as the description progresses the invention resides in certain novel tentures of construction, and in the combination and arrangement of parts as Will be hereinafter more :fully described and claimed.

l llfn the drawing:

Figure 1 is a side elevation ot the wheel embodying my invention,

lligure 2 is an edge elevationthereot partf4 ly broken away,

Figure 3 is another side elevation thereof partly in section showing the device trom an opposite side to that shoivn in .Figure l, and

Figure e is a fragmentary detail perspective ot one end of one of the nonslrid rods,

Referring to the drawing in detail it will be seen that the Wheel l may he ot any preferred construction having thereon the usual tire 2. A `lined rim 3 is provided on one side ot the Wheel adjacent its hub por- Y tion and another fixed rim e is provided on the wheel outside ot the rim 3 adjacent the inside of the tire 2. The inner rini 3 is provided with a. single slot 5 While the outer rini 4 is provided With a plurality et slots 6 spaced circumterentially about the rini at equal distances from each other.

A rotatable ring 7 is movable about the inner rim 3 and a semi-circular rack 8 is lined thereto, the shank 9 th'ereoil extending through the slot 5. A pinion l0 is mounted i924 Serial' ll'o. 703,511.

on a shattll extended through the 'Wheel and terminating in a square end at the other side tliereolA troni the pinion. Thispinion meshes With the rack 8 so that the ring 7 may be partially rotated. .A plurality of anti-skid rods l2 projectone through each slot 6, and `are .pivotally engaged with the riin 7 at spaced equal intervals. lllVhen the rods are positionedas shoivnnin Figure they are in their actiyepositions the `outer ends thereof are provided Within-ntis'lrid cleats le shown to `iadventage in` Figure 1- By rotatiiw' the sliattll the rack 8 may he moved so as to rotate the ring? thus removing the rods l2 to thedottedline position in Figure?) that is the inactiveposition. rlhe ends ot the rods when in an active position are substantially flush vviththe tread of the tire 23 so as to engage the ground and prevent shielding ot the Wheel.

A. hinged lea'l" l5 is provided on the Wheel on the opposite side from that to which is attached the rims 3 and d and is provided `With a square opening 16 so that it may be engaged over the squared endet the shaft ll and thus will lock thissliatt against rotation. l y

lt is .thought Vthat the construetioni and operation ot the invention will be readily understood Without any more detailed 1 description thereof. Itis desired, hoiveveigto point out the numerous changes .in the detailsvot construction, and vin the combina` tion and arrangement of parts may be resorted to Without departing from the spirit or 'scope `ot the invention as herein-k a'lfter claimed or sacriiicing` anyot itsadvantages.

Having thus described my invention,

what l claim as new is:

l. in combination, a Wheel an inner rim hired to the Wheel, an outer rim fixed to the wheel, said outer rim provided with a plurality ot slots, a ring rotatable about the inner rim, a pluralityl of rodsextending through the slots, and pivotally connected to said ring.`

ln combination, a Wheel, an inner rim lined to the Wheel, an outer rim lined to the Wheel, said outer rim provided With' a plurality ot slots, a ring rotatable on the inner rim7 rods pivotally connected to the vring and projecting through the slots oi the outer rim, and means for moving the ring so that the rods may be moved to an active or inactive position.

ISO

3. vIn combination, a Wheel, an inner rim` iiXed to the Wheel, an outer rim fixed to the Wheel, said outer rim provided With a plurality ot' slots, a ring rotatable on the inner rim, rods pivotally eonneeted to the ring and projecting through the slots or' the outer rim, means for moving the ring so that the rods may be moved to an active or inactive position, and a` mechanism for holding operation.

et. In combination, a Wheel, an inner rim fixed to the Wheel, an outer rim fixed to the Wheel, said outer rim' provided with a plurality oi' slots, said inner rim provided with a; single slot, a ring rotatable about the inner rim and provided With a semioiroular rack disposed Within the inner rim extending through the slot thereof, a pinion, a shaft for rotation of said pinion, said pinion meshing' with said rack, a plurality of rods pivoted to the ring and passing through the slots of the outer rim.l

5. In combination, a Wheel, an inner rim lined to the Wheel, anouter rim fixed tothe Wheel, said outer rim provided With a plurality of slots, said inner rim provided with a single slot, a ring rotatable about the inner rim` and provided with a semi-circular Vrackv disposed Within the inner rim extending through the slot thereof, a pinion, a shaft for rotation ot' said pinion, Vsaid pinion meshing With said rack, a plurality of rods pivotedto the ring and passing through the slots of the outer rim, and means for preventing rotation of said shaft.

6. In combination, a Wheel, an inner rim fixed to the Wheel, an outer rim Xed to thek Wheel, said outer rim provided with a plurality of slots, said inner rim provided with a single slot, a ring rotatable about the inner rim and provided with a semi-cil said means against accidental* cular rack disposed Within the inner rim entending through the slot thereof, a pinion, a shaft tor rotation ot Said pinion, said pinion meshing With said rack, a plurality of rods pivoted to the ring and passing' through the slot-s of the outer rim, means for preventing rotation of said shaft, the outer ends of said rods provided with nonskid cleats. p

7. In combination, a. Wheel, an inner rim fixed to said Wheel and provided with a slot, an outer rim fixed to said Wheel and provided with a series of slots arranged at `itervals thereabout, a ring rotatable about the inner rim, a semi-circular rack, a. shank extending tl'irough the slot of the inner rim and connecting the rack to the ring, a plurality of rods pivoted to the ring and extending through the slots ot the outer rim, a pinion meshing'V with the rack, and means for rotating the pinion.

8. In combination, a Wheel, an inner rim fixed to saidwheel and provided with a slot, an outer rim fixed to said Wheel yand provided with aseries of slotsv arranged at intervals thereabout, a ring rotatable about `the inner rim, a semi-Circular rack, a shanlg extending through the slot of the inner rim and connecting the Vraelr to the ring, a plurality et rodspivoted to thering and extend'- ing through the slots of the outer rim, a pinion meshing with the raolr, Vmeans for rotating the pinion, and a-n'ieehanism for `preventing accidental operation ot' Said means.

In testimony whereof I atlix my signature 1n presence of tivo Witnesses.

ARCHY ANGUS MGISAAC.

lVitnesses IV. D. LAURENCE, MALCOLM DUGGAN. 

